JP2012060018A - Solar cell module manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell module manufacturing method in which solar cell modules can be efficiently manufactured.SOLUTION: The solar cell manufacturing method according to this invention is a method for manufacturing solar cell modules each of which includes backside electrode type solar cells and a solar cell module substrate. The manufacturing method includes: a fixation process (S11) in which the backside electrode type solar cells are fixed to the solar cell module substrate; and a solar cell cutting process (S12) in which the solar cells fixed to the solar cell module substrate in the fixation process are cut to a predetermined size.

Description

  The present invention relates to a method for manufacturing a solar cell module in which solar cells that directly convert solar energy into electrical energy are mounted on a solar cell module substrate.

  Solar cells that directly convert solar energy into electrical energy are expected to grow as next-generation energy sources, and are being developed.

  In general, solar cells that are produced and sold have a configuration in which an n (negative) electrode is provided on a light receiving surface that receives sunlight, and a p (positive) electrode is provided on the back surface. The n (negative) electrode provided on the light receiving surface side is indispensable for taking out the current. However, in the portion where the n (negative) electrode is provided, sunlight is incident on the light receiving surface. As a result, it cannot generate electricity in that part. For this reason, when the area in which the n (negative) electrode is provided increases, the conversion efficiency into electric energy is reduced.

  Therefore, as shown in FIG. 19 and FIG. 20, a configuration in which no electrode is provided on the light receiving surface 117, and both p (positive) and n (negative) electrodes (positive electrode 120, negative electrode 119) are provided on the back surface 118. A solar cell module using the back electrode type solar cell 116 is developed. FIG. 19 shows a conventional technique and is a diagram showing a schematic configuration of a back electrode type solar battery cell 116. FIG. 20 shows the prior art, and is a cross-sectional view showing the AA ′ cross section in the back electrode type solar cell 116 of FIG.

  As shown in FIGS. 19 and 20, positive electrodes 120 and negative electrodes 119 are alternately arranged on the back surface 118 of the back electrode type solar cell 116. A plurality of back electrode type solar cells 116 having such a configuration can be connected in series to form a solar cell module. That is, the wafer-sized back electrode type solar cell 116 can be cut into chips and mounted on the solar cell module substrate 135 to form a solar cell module. Generally, a solar cell module is formed by the following procedure.

  First, in order to cut the wafer-sized back electrode type solar cell 116, the back side electrode type solar cell 116 is attached to a cutting fixing tape 128 fixed to a fixing ring 129 as shown in FIG. . FIG. 21 shows the prior art, and is a diagram for explaining the state of attachment of the back electrode type solar cell 116 to the fixing ring 129.

  At this time, as shown in FIG. 21, the surface (light receiving surface 117) of the back electrode type solar cell 116 and the adhesive surface of the cutting fixing tape 128 are attached so as to contact each other. For this reason, after the back surface electrode type solar cells 116 are bonded to the cutting fixing tape 128, the back surface 118 is exposed to the front as shown in FIG.

  Thus, when the back electrode type solar cell 116 is fixed to the fixing ring 129 via the cutting fixing tape 128, it is cut using the silicon cutting blade 123 as shown in FIG. As shown in FIG. 23, the cutting is performed so as to draw a plurality of lines (vertical cutting line 131 and horizontal cutting line 132) parallel in the vertical direction and the horizontal direction. For this reason, the back surface electrode type solar cell 116 after cutting has a rectangular shape as shown in FIG. FIG. 22 shows the prior art, and is a diagram for explaining the cutting process of the back electrode type solar cell 116. FIG. 23 shows the prior art, and is a diagram showing an example of a cutting position of the back electrode type solar cell 116 by the silicon cutting blade 123. FIG. 24 is a diagram showing an example of a cell chip 133 after cutting into individual pieces, in which the back electrode type solar battery cell 116 is cut, showing the prior art.

  The cell chips 133 after being singulated are stored in a dedicated tray 134 shown in FIG. At this time, the cell chip 133 is stored so that the front surface (light receiving surface 117) is upward, that is, the back surface 118 of the cell chip 133 is on the bottom side of the dedicated tray 134. FIG. 25 is a diagram illustrating an example of a dedicated tray 134 for storing the cell chip 133 according to the related art.

  Next, the cell chip 133 stored in the dedicated tray 134 is mounted on the solar cell module substrate 135 as shown in FIGS. FIG. 26 shows a conventional technique and is a diagram showing the surface (light receiving surface) side of the solar cell module substrate 135. Moreover, FIG. 27 shows a prior art and is a sectional view showing a BB ′ section in the solar cell module substrate 135 shown in FIG. 26.

  As shown in FIG. 27, in the solar cell module substrate 135, module wiring that connects both the negative electrode 102 and the positive electrode 103 as land terminals, that is, surface wiring 136 that bundles negative electrodes and surface wiring 137 that bundles positive electrodes. And formed on the surface of the solar cell module substrate 135.

  The cell chip 133 after the separation is mounted on the solar cell module substrate 135 using the conductive adhesive resin 121. Specifically, as shown in FIG. 28, cell chips 133 are mounted one by one on a solar cell module substrate 135 having two or more cavities.

  In addition, as shown in FIG. 29, the bonding state between the cell chip 133 after separation and the solar cell module substrate 135 is a back electrode type solar cell 116 (cell chip 133) with a conductive adhesive resin 121 between them. The negative electrode 119 and the negative electrode 102 on the solar cell module substrate 135 are joined together with the positive electrode 120 on the cell chip 133 and the positive electrode 103 on the solar cell module substrate 135 so as to correspond to each other. FIG. 28 shows the prior art, and is a diagram showing an example of a mounting state of the cell chip 133 on the solar cell module substrate 135. FIG. 29 shows a conventional technique and is a cross-sectional view showing a CC ′ cross section in a state where the cell chip 133 is mounted on the solar cell module substrate 135 shown in FIG.

  When all the cell chips 133 are mounted on the solar cell module substrate 135, sealing is performed with a transparent protective resin (for example, a clear mold 125) as shown in FIG. FIG. 30 shows a conventional technique and is a diagram showing a state of the solar cell module substrate 135 after sealing with the clear mold 125.

  The solar cell module substrate 135 sealed with the clear mold 125 is fixed to the resin cutting fixing tape 141 attached to the fixing ring 129. Then, as shown in FIG. 31, it is cut into arbitrary package sizes by the substrate cutting blade 140. The solar cell module 142 can be manufactured by the above procedure. FIG. 31 shows a conventional technique and is a diagram showing an example of a process of cutting the solar cell module substrate 135 on which the cell chip 133 is mounted.

  For example, Patent Document 1 discloses a technique for electrically connecting the electrode of the back electrode type solar battery cell and the wiring of the wiring board as described above and sealing it with a sealing material to form a solar battery module. The disclosed solar cell module has been proposed.

JP 2009-88145 A (published April 23, 2009)

  However, the conventional technology as described above has a problem that the solar cell module cannot be efficiently produced.

  More specifically, in the solar cell module production method according to the above-described prior art, the solar cell is fixed to the fixture (fixing ring 129) when the wafer-sized solar cell is cut into a chip size. The fixing tape (fixing tape 128 for cutting) is used. When the fixing force of the fixing tape to the solar battery cell is increased, the solar battery cell after cutting cannot be properly peeled off and may be damaged. On the other hand, if the fixing force is reduced, there is a possibility that the chip-sized solar cells separated at the time of cutting will be peeled off and damaged.

  For this reason, even if it is a case where the adhering force of a fixing tape is raised, or it is a case where peelability is raised conversely, possibility that the damage of a photovoltaic cell will arise will be high in any case. Therefore, the solar cell module cannot be efficiently produced.

  Furthermore, in the solar cell module production method according to the prior art, wafer-sized solar cells are cut into chip sizes, temporarily stored in a dedicated tray, and then cut into chip sizes one by one. It is necessary to mount it on the module board. For this reason, the number of processes in a manufacturing process increases, and a solar cell module cannot be produced efficiently.

  This invention is made | formed in view of said problem, The objective is to implement | achieve the manufacturing method of a solar cell module which can produce a solar cell module efficiently.

  In order to solve the above-described problem, a method for manufacturing a solar cell module according to the present invention has a positive electrode that is a positive electrode and a negative electrode on a back surface that is a surface opposite to a light receiving surface that receives sunlight. A method of manufacturing a solar cell module, comprising: a solar cell provided with a negative electrode as an electrode; and a substrate for mounting the solar cell, wherein the substrate includes: Conductive patterns are respectively formed on a first layer surface that is a surface in contact with the solar battery cell when mounted and a second layer surface that is a surface of a layer different from the first layer surface. On the two-layer surface, wiring for guiding the current from the solar battery cell to the outside is formed as a conductive pattern. The fixing process for fixing the solar battery cell to the substrate, and the fixing process to the substrate. Fixation Characterized in that it comprises a solar cell cutting step of cutting the solar cell to have a predetermined size as a.

  Here, the solar battery cell directly converts solar energy into electric energy.

  According to the method described above, the fixing step and the solar cell cutting step are included. For this reason, in the manufacturing method of the solar cell module according to the present invention, the solar cells can be cut by the solar cell cutting step while the solar cells are fixed to the substrate by the fixing step. Therefore, for example, omitting the step of fixing a wafer-sized solar battery cell to a chip size using a fixing tape, which is a necessary step in the conventional manufacturing method. Can do. Therefore, the solar cell module can be manufactured efficiently.

  Moreover, since the process of fixing to a fixture using a fixing tape in order to cut | disconnect a photovoltaic cell can be abbreviate | omitted, the fixing tape utilized in order to fix a photovoltaic cell is also unnecessary. Therefore, it is possible to prevent the cut solar battery cell from being damaged when it is peeled off from the fixing tape, or from being damaged by being peeled off from the fixing tape during cutting. Therefore, the number of solar cells that are damaged during production can be reduced, and the productivity of solar cells can be increased. Therefore, as a result, efficient production of solar cells can be realized.

  In addition, in the board | substrate which fixes a photovoltaic cell, it is wired to the 2nd hierarchy surface which is a surface of a hierarchy different from the said 1st hierarchy surface. Since the substrate is configured in this way, when cutting only the solar cells in a state of being fixed to the substrate, it is possible to prevent the wiring provided on the substrate from being accidentally cut, and the solar The battery cell cutting step can be executed.

  Therefore, the manufacturing method of the solar cell module according to the present invention has an effect that the solar cell module can be efficiently produced.

  Further, in the method for manufacturing a solar cell module according to the present invention, in the above method, the outer size of the substrate is larger than the outer size of the solar cell fixed by the fixing step. Even when a solar cell is fixed, a blank portion formed on the outer peripheral portion of the solar cell module substrate is provided with a first alignment mark that is a mark indicating a reference for the cutting position of the solar cell. Good.

  According to the above method, since the first alignment mark is attached, the solar battery cell can be easily cut into an arbitrary shape.

  Moreover, the manufacturing method of the solar cell module which concerns on this invention WHEREIN: In the above-mentioned method, you may cut | disconnect from the light-receiving surface of the said photovoltaic cell to the said 1st hierarchy surface in the said photovoltaic cell cutting process.

  For this reason, a photovoltaic cell can be cut | disconnected reliably and can be divided into arbitrary sizes.

  Further, in the method for manufacturing a solar cell module according to the present invention, in the above method, the positive electrode and the negative electrode are alternately arranged on the back surface of the solar battery cell, and a pair of positive electrode and negative electrode are arranged. The voltage between the electrodes may be defined as a reference voltage.

  According to the method described above, the voltage between the pair of positive electrodes and the negative electrode is defined as the reference voltage, so that a desired voltage can be easily obtained depending on how many pairs of the positive electrode and the negative electrode are combined. it can.

  For example, when one solar cell that has been cut and separated has a pair of positive electrode and negative electrode, and the solar cells are connected in series, the reference voltage × the number of solar cells can be easily used. A desired voltage can be obtained.

  Therefore, a solar cell module having a desired voltage can be generated depending on the position to be cut in the substrate cutting step. Also, a plurality of solar cell modules having a desired voltage can be manufactured at a time.

  Moreover, the manufacturing method of the solar cell module according to the present invention is the above-described method, wherein the positive electrode terminal connected to the positive electrode as the conductive pattern and the negative electrode connected to the negative electrode are formed on the first layer surface as the conductive pattern. A wiring formed as a conductive pattern on the second layer surface is a first wiring connected to the positive electrode terminal and a second wiring connected to the negative electrode terminal, and the fixing In the step, the solar cell may be fixed to the solar cell module substrate so that the positive electrode and the negative electrode of the solar cell correspond to the positive electrode terminal and the negative electrode terminal of the solar cell module substrate, respectively. .

  According to the above-described method, in the fixing step, the solar cell is connected to the solar cell so that the positive electrode and the negative electrode of the solar cell correspond to the positive electrode terminal and the negative electrode terminal of the solar cell module substrate, respectively. In order to adhere to the module substrate, the first wiring and the second wiring formed on the second layer surface can be connected to the positive electrode and the negative electrode of another solar battery cell.

  In the method for manufacturing a solar cell module according to the present invention, an insulating protective film is further formed on the first layer surface of the substrate between the adjacent positive electrode terminal and negative electrode terminal in the above-described method. It may be.

  According to the above method, since the insulating protective film is formed between the adjacent positive electrode terminal and the negative electrode terminal, it is possible to prevent the adjacent positive electrode terminal and the negative electrode terminal from coming into contact with each other. .

  In the method for manufacturing a solar cell module according to the present invention, the positive electrode terminal formed on the first layer surface and the first wiring formed on the second layer surface in the above method. And between the negative electrode terminal formed on the first layer surface and the second wiring formed on the second layer surface are formed between the first layer surface and the second layer surface, respectively. It may be connected through the made through hole.

  According to the above-described method, the conductive patterns formed on different hierarchical surfaces by the through holes can be connected to each other on the substrate.

  Further, the method for manufacturing a solar cell module according to the present invention includes the sealing step of sealing with a protective resin in order to protect the solar cells cut by the solar cell cutting step in the above-described method, and the sealing It may further include a substrate cutting step of cutting the substrate to which the solar cells sealed with the protective resin by the stopping step are fixed to an arbitrary size.

  Here, the sealing with the protective resin can be realized by a clear mold such as an epoxy resin sealing package.

  According to the above-described method, since the sealing step is included, the cut solar cell can be protected from the influence given from the outside. Moreover, since the said board | substrate cutting process is included, the solar cell module of a desired size can be produced | generated.

  Further, in the method for manufacturing a solar cell module according to the present invention, in the above method, the outer size of the substrate is larger than the outer size of the solar cell fixed by the fixing step. When the solar battery cell is fixed, a second alignment mark, which is a mark indicating a reference of the cutting position of the substrate cut in the substrate cutting step, is formed in a blank portion formed on the outer peripheral portion of the solar cell module substrate. It may be attached.

  According to the above method, since the second alignment mark is attached, the substrate to which the solar battery cell is fixed can be easily cut into an arbitrary shape.

  Further, in the method for manufacturing a solar cell module according to the present invention, in the above-described method, it is preferable that the first wiring and the second wiring are not formed at a position to be cut by the substrate cutting step on the second layer surface. .

  In the method for manufacturing a solar cell module according to the present invention, in the above method, the first cut which is a cut formed by cutting in the solar cell cutting step is sealed with a protective resin in the sealing step. In the substrate cutting step, the portion filled with the protective resin at the first cut end may be cut by a cutting means that forms a cut having a width smaller than the width of the first cut.

  In the method for manufacturing a solar cell module according to the present invention, in the above-described method, in the fixing step of fixing the solar cell to the substrate, the mounting position of the solar cell on the substrate is confirmed by an infrared sensor or an infrared camera. May be.

  Further, in the method for manufacturing a solar cell module according to the present invention, in the above method, the infrared camera or the infrared sensor is disposed at a position where the entire outer shape of the solar cell to be fixed to the substrate and the substrate can be detected. In the fixing step, the mounting position of the solar battery cell on the substrate may be confirmed with reference to the detection result of the infrared camera or the infrared sensor.

  Further, in the method for manufacturing a solar cell module according to the present invention, in the above method, the infrared camera or the infrared sensor is movable so as to detect the entire outer shape of the substrate and the solar cell fixed to the substrate. In the fixing step, the mounting position of the solar battery cell on the substrate may be confirmed with reference to the detection result of the infrared camera or infrared sensor.

  As described above, the method for manufacturing a solar cell module according to the present invention has a positive electrode that is a positive electrode and a negative electrode that is a negative electrode on the back surface that is the surface opposite to the light receiving surface that receives sunlight. A solar cell module manufacturing method comprising a solar cell provided with an electrode and a substrate on which the solar cell is mounted, the substrate having the solar cell mounted when the solar cell is mounted. Conductive patterns are respectively formed on a first layer surface that is a surface in contact with the solar cell and a second layer surface that is a surface of a layer different from the first layer surface. Has a wiring for guiding the current from the solar battery cell to the outside as a conductive pattern, and a fixing process for fixing the solar battery cell to the substrate, and a solar battery fixed to the substrate by the fixing process Cell Characterized in that it comprises a solar cell cutting step of cutting to be a constant size, the.

  Therefore, the manufacturing method of the solar cell module according to the present invention has an effect that the solar cell module can be efficiently produced.

BRIEF DESCRIPTION OF THE DRAWINGS It is a flowchart which shows embodiment of this invention and shows the manufacturing process of the solar cell module using the back electrode type photovoltaic cell. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates an embodiment of the present invention and is a diagram illustrating a configuration of a solar cell module. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates an embodiment of the present invention and is a diagram illustrating a surface structure on a light receiving surface side of a solar cell module substrate. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates an embodiment of the present invention, and is a diagram illustrating a surface structure of a back surface that is a surface opposite to a light receiving surface side in a solar cell module substrate. FIG. 4 is a cross-sectional view showing an embodiment of the present invention and showing an α-α ′ cross section in the solar cell module substrate shown in FIG. 3. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows embodiment of this invention and shows the light-receiving surface of a back electrode type photovoltaic cell. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows embodiment of this invention and shows the back surface of a back electrode type photovoltaic cell. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, showing an embodiment of the present invention, is a diagram illustrating a process of mounting wafer-sized back electrode type solar cells on a solar cell module substrate. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates an embodiment of the present invention and is a cross-sectional view showing a β-β ′ cross section when a back electrode type solar cell is mounted on a solar cell module substrate. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows embodiment of this invention and shows the example of a cutting | disconnection of the back surface electrode type photovoltaic cell mounted in the solar cell module board | substrate. FIG. 11 shows the embodiment of the present invention, and is a cross-sectional view taken along a γ-γ ′ cross section of a solar cell module substrate on which the back electrode type solar cells shown in FIG. 10 are cut. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows embodiment of this invention and shows the state which sealed the back electrode type photovoltaic cell mounted in the solar cell module board | substrate with transparent protective resin or a clear mold. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows embodiment of this invention and shows the cutting process of the solar cell module board | substrate which mounts a back-electrode-type solar cell. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, showing an embodiment of the present invention, is a cross-sectional view showing a cross-sectional shape after dividing a solar cell module substrate on which back electrode type solar cells are mounted into package sizes. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, showing an embodiment of the present invention, is a cross-sectional view showing a cross-sectional shape after dividing a solar cell module substrate on which back electrode type solar cells are mounted into package sizes. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, showing an embodiment of the present invention, is a cross-sectional view showing a cross-sectional shape after dividing a solar cell module substrate on which back electrode type solar cells are mounted into package sizes. FIG. 4 is a diagram illustrating an embodiment of the present invention and illustrating an example of installation of an infrared camera in a fixing process. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, showing an embodiment of the present invention, is a diagram showing an example in which an alignment mark is attached in a state where a back electrode type solar cell is mounted on a solar cell module substrate. It is a figure which shows a prior art and shows schematic structure of a back electrode type photovoltaic cell. FIG. 20 shows a conventional technique and is a cross-sectional view showing an AA ′ cross section in the back electrode type solar battery cell of FIG. 19. It is a figure which shows a prior art and illustrates the attachment state to the fixing ring of a back electrode type photovoltaic cell. It is a figure which shows a prior art and illustrates the cutting process of a back electrode type photovoltaic cell. It is a figure which shows a prior art and shows an example of the cutting position by the cutting blade for silicon | silicone of a back electrode type photovoltaic cell. It is a figure which shows a prior art and shows an example of the cell chip after individualization which cut | disconnected the back-electrode-type solar cell. It is a figure which shows a prior art and shows an example of the exclusive tray which stores a cell chip. It is a figure which shows a prior art and shows the surface side of a solar cell module board | substrate. FIG. 27 is a cross-sectional view showing a conventional technique and showing a BB ′ cross section in the solar cell module substrate shown in FIG. 26. It is a figure which shows a prior art and shows an example of the mounting state of the cell chip to a solar cell module board | substrate. FIG. 29 is a cross-sectional view showing a conventional technique and showing a CC ′ cross section in a state where a cell chip is mounted on the solar cell module substrate shown in FIG. 28. It is a figure which shows a prior art and shows the state of the solar cell module board | substrate after sealing by a clear mold. It is a figure which shows a prior art and shows an example of the process which cut | disconnects the solar cell module board | substrate which mounted the cell chip.

  An embodiment of the present invention will be described below with reference to FIGS. That is, as shown in FIG. 2, the solar cell module 27 according to the present embodiment is for converting solar energy into electrical energy, and includes the solar cell module substrate 1 and a plurality of back electrode type solar cells. In this configuration, the cell 16 is provided. FIG. 2 shows an embodiment of the present invention and is a diagram showing a configuration of the solar cell module 27.

  The back electrode type solar cell 16 directly converts solar energy into electric energy. The back electrode type solar cell 16 has a configuration in which no electrode is provided on the light receiving surface side, and both p (positive) and n (negative) electrodes are provided on the back surface.

  The solar cell module substrate 1 is a substrate for mounting a plurality of back electrode type solar cells 16.

(Configuration of solar cell module substrate)
First, the structure of the solar cell module substrate 1 will be described with reference to FIGS. FIG. 3 shows an embodiment of the present invention and is a view showing a surface structure on the light receiving surface side of the solar cell module substrate 1. FIG. 4 shows an embodiment of the present invention and is a view showing a surface structure of the back surface, which is the surface opposite to the light receiving surface side in the solar cell module substrate 1. FIG. 5 shows an embodiment of the present invention and is a cross-sectional view showing an α-α ′ cross section in the solar cell module substrate shown in FIG.

  The solar cell module substrate 1 is composed of at least two or more insulating substrates as shown in FIG. Although the solar cell module substrate 1 according to the present embodiment will be described in detail later, the negative electrode 2, the positive electrode 3, and the insulating protective film (insulating property) are formed on the upper surface (first layer surface) of the first layer 50. Protective film) 43 and the like are formed. Further, the lower wiring 5 (the lower wiring 12 for bundling the positive electrode and the lower wiring 13 for bundling the negative electrode) on the top surface (second layer surface) of the second layer 51 and the bottom surface (second layer surface) of the third layer 52 and the wiring 10. 11 is provided.

  As shown in FIG. 3, the solar cell module substrate 1 has a negative electrode 2, a positive electrode 3, a through hole 4, a negative electrode through hole 6 for external connection, and an external connection on the light receiving surface side. The structure includes positive electrode through holes 7 and insulating protective films 43. In the present specification, when it is not necessary to distinguish between the singular and plural, the negative electrode 2, the positive electrode 3, the through hole 4, the negative electrode through hole 6 for external connection, the positive electrode for external connection are simply used. It shall be referred to as a through hole 7, an insulating protective film 43, or the like.

  The negative electrode 2 and the positive electrode 3 are land electrodes for connecting to the negative electrode 19 and the positive electrode 20 provided on the back surface 18 side of the back electrode type solar battery cell 16. The negative electrode 2 and the positive electrode 3 are alternately arranged on the solar cell module substrate 1 so as to be in positions corresponding to the negative electrode 19 and the positive electrode 20 at the time of joining to the back electrode type solar cell 16. Yes.

  The through hole 4 (that is, the negative terminal through hole 14 and the positive terminal through hole 15) is for wiring the negative electrode 2 and the positive electrode 3 in the second and subsequent layers. The negative electrode 2 and the positive electrode 3 are connected to the lower wiring 5 (the lower wiring 12 that bundles the positive electrodes and the lower wiring 13 that bundles the negative electrodes) through the through holes 4. The lower electrode 5 connects the negative electrode 2 and the positive electrode 3 in series. That is, the current from the back electrode type solar cell 16 can be guided to the outside by the lower wiring 5.

  The external connection negative electrode through hole 6 and the external connection positive electrode through hole 7 are external output terminals (external connection negative electrode terminal 8 and external connection positive electrode terminal) disposed on the back side of the solar cell module substrate 1. This is a through hole for wiring to 9). That is, as shown in FIG. 4, on the back side of the solar cell module substrate 1, the negative electrode 2 wired by the external connection negative electrode through hole 6 is connected to the external connection negative electrode terminal 8 by the wiring 11. . Further, the positive electrode 3 wired by the external connection positive electrode through hole 7 is connected to the external connection positive electrode terminal 9 by the wiring 10.

  The insulating protective film 43 is a protective film for preventing influence from the outside and preventing adjacent electrodes from coming into contact with each other. As shown in FIG. It is provided between the positive electrode 3.

(Solar cell module manufacturing process)
Next, the manufacturing process of the solar cell module 27 will be described with reference to FIGS. 1 and 6 to 16.

  First, the structure of the back electrode type solar cell 16 mounted on the solar cell module substrate 1 will be described with reference to FIGS. FIG. 6 shows an embodiment of the present invention and is a view showing the light receiving surface 17 of the back electrode type solar battery cell 16. FIG. 7 shows an embodiment of the present invention and is a diagram showing a back surface 18 of the back electrode type solar battery cell 16.

  As shown in FIG. 6, the back electrode type solar cell 16 is not provided with an electrode on the light receiving surface 17 side, and the negative electrode 19 and the positive electrode 20 are alternately arranged on the back surface 18 side as shown in FIG. It is an arranged configuration.

  Below, the manufacturing process of the solar cell module 27 using this back surface electrode type photovoltaic cell 16 is demonstrated along the flowchart shown in FIG. FIG. 1 shows an embodiment of the present invention and is a flowchart showing a manufacturing process of a solar cell module 27 using a back electrode type solar cell 16.

  As shown in FIG. 1, first, wafer-sized back electrode type solar cells 16 are mounted on the solar cell module substrate 1 (adhering step; step S11, hereinafter referred to as S11). As shown in FIG. 8, the back electrode type solar cell 16 is mounted on the solar cell module substrate 1 by conducting the back surface 18 of the back electrode type solar cell 16 and the light receiving surface side surface of the solar cell module substrate 1. It can be realized by bonding through the adhesive resin 21. As a result of pasting back electrode type solar cells 16 on solar cell module substrate 1, light receiving surface 17 of back electrode type solar cells 16 is exposed to the front as shown in FIG. FIG. 8 shows an embodiment of the present invention and is a diagram showing a process of mounting the wafer-sized back electrode type solar cell 16 on the solar cell module substrate 1.

  In addition, when bonding the back electrode type solar cell 16 to the solar cell module substrate 1, the solar cell module substrate 1 having a larger outer size than the back electrode type solar cell 16 is used. Moreover, the negative electrode 2 and the positive electrode 3 provided on the solar cell module substrate 1 and the negative electrode 19 and the positive electrode 20 provided on the back electrode type solar cell 16 need to be bonded to each other without deviation. is there. Therefore, alignment marks are provided in each of the solar cell module substrate 1 and the back electrode type solar cells 16, and they are bonded together with high accuracy using, for example, an IR (infrared camera) or an infrared sensor.

  Specifically, in this adhering step, as shown in FIG. 17, the infrared camera can be moved so that the entire outer size of the wafer-sized back electrode solar cell 16 and the solar cell module substrate 1 can be confirmed. is set up. And based on the imaging | photography result image | photographed with this infrared camera, the mounting position with respect to the solar cell module board | substrate 1 of the back electrode type photovoltaic cell 16 is confirmed with reference to an alignment mark, and an adhering process is implemented. FIG. 17 illustrates an embodiment of the present invention and is a diagram illustrating an example of installation of an infrared camera in the fixing process.

  In addition, when an infrared camera can be arrange | positioned in the position which can image | photograph the whole external size of the wafer size back surface electrode type solar cell 16 and the solar cell module board | substrate 1, it is necessary to make this infrared camera into the structure which can move. There is no. Moreover, although the structure which confirms a mounting position with an infrared camera was demonstrated here, an infrared sensor may be sufficient.

  Moreover, about the example of the alignment mark provided in each of the solar cell module board | substrate 1 and the back surface electrode type photovoltaic cell 16, it is the same as that of the alignment mark utilized in the case of the photovoltaic cell cutting process mentioned later. For this reason, description is abbreviate | omitted here and it shall show concretely in the latter photovoltaic cell cutting process.

  The cross-sectional shape when the back electrode type solar cell 16 is bonded to the solar cell module substrate 1 is as shown in FIG. That is, between the positive electrode 3 of the solar cell module substrate 1 and the positive electrode 20 of the back electrode type solar cell 16, and the negative electrode 2 of the solar cell module substrate 1 and the negative electrode of the back electrode type solar cell 16. 19 are electrically connected to each other by bonding with a conductive adhesive resin 21. Further, the insulating protective film 43 provided on the solar cell module substrate 1 is configured to prevent external influences and contact between adjacent electrodes. FIG. 9 shows an embodiment of the present invention and is a cross-sectional view showing a β-β ′ cross section when the back electrode type solar cell 16 is mounted on the solar cell module substrate 1.

  Next, only the back electrode type solar cell 16 is cut by the cutting blade for silicon 23 (solar cell cutting step; S12). That is, as shown in FIG. 10, the back electrode type solar cell 16 mounted on the solar cell module substrate 1 is cut into a predetermined cell chip size by the silicon cutting blade 23 and separated into individual pieces.

  At this time, the outer peripheral portion of the solar cell module substrate 1 whose outer size is larger than that of the back electrode type solar cell 16, that is, when the back electrode type solar cell 16 is mounted so as to know the location to be cut. An alignment mark (first alignment mark) is applied to the portion (margin portion) as shown in FIG. FIG. 18 shows an embodiment of the present invention, and is a diagram showing an example in which alignment marks are attached to the solar cell module substrate 1 with the back electrode type solar cells 16 mounted thereon. In FIG. 18, the alignment marks are used as reference marks for cutting lines (cutting positions) in the vertical and horizontal directions so that the back electrode type solar cells 16 have a predetermined cell chip size. Then, the back electrode type solar cells 16 are cut by the silicon cutting blade 23 with reference to the alignment mark. FIG. 10 shows an embodiment of the present invention and is a diagram showing a cutting example of the back electrode type solar cell 16 mounted on the solar cell module substrate 1.

  Note that, when the back electrode type solar cell 16 is cut, the solar cell module substrate 1 is fixed using the adsorption fixing jig 22. The fixing of the solar cell module substrate 1 is not limited to the suction fixing jig 22 and may be, for example, a resin fixing tape.

  The alignment mark shown in FIG. 18 is an example, and the shape, arrangement, and orientation of the mark are not limited to this. That is, any mark shape, arrangement, and orientation that enables the back electrode type solar cells 16 to be cut out to have a predetermined cell chip size may be used.

  At the time of cutting shown in step S <b> 12, it is necessary to cut at least the outermost surface layer of the solar cell module substrate 1 with the silicon cutting blade 23 in order to completely separate the back electrode type solar cells 16. Here, the outermost surface of the solar cell module substrate 1 is a side to be joined to the back electrode type solar cell 16, that is, a surface on the light receiving side.

  Therefore, as shown in FIG. 11, the solar cell module substrate 1 is configured so that there is no problem even if it is cut to its outermost surface (up to the position of the cutting groove 24 in FIG. 11) by the silicon cutting blade 23. Yes. That is, the lower wiring 13 for bundling the negative electrode and the lower wiring 12 for bundling the positive electrode are lower than the outermost layer (first layer) (second and subsequent layers) so as not to be broken or damaged by the silicon cutting blade 23. Wiring to. FIG. 11 shows an embodiment of the present invention, and a cross section taken along the γ-γ ′ cross section of the solar cell module substrate 1 on which the back electrode type solar cell 16 shown in FIG. 10 is cut. FIG.

  As shown in FIG. 11, after cutting only the back electrode type solar battery cell 16, it is necessary to protect the back electrode type solar battery cell 16 from the influence given from the outside. Therefore, in order to protect from the influence given from the outside, it is sealed with a transparent protective resin (for example, a clear mold 25 such as an epoxy resin sealing package) so as to cover the entire cut back electrode type solar battery cell 16 ( Sealing step; S13).

  At this time, the transparent protective resin or the clear mold 25 is completely infiltrated up to the cutting groove 24 shown in FIG. Further, in order to completely cover the back electrode type solar cell 16, a transparent protective resin or a clear mold is provided up to a part of the outer peripheral portion of the solar cell module substrate 1, that is, the region near the back electrode type solar cell 16 in the outer peripheral portion. 25. However, an alignment mark (second alignment mark) used for cutting into a package size to be performed in a subsequent process is provided in a blank portion in the outer peripheral portion of the solar cell module substrate 1, and this alignment mark is a transparent protective resin. Alternatively, it is not covered with the clear mold 25.

  In addition, the state after sealing of the back surface electrode type solar cell 16 by the transparent protective resin or the clear mold 25 has a structure as shown in FIG. FIG. 12 shows an embodiment of the present invention and is a view showing a state in which the back electrode type solar cell 16 mounted on the solar cell module substrate 1 is sealed with a transparent protective resin or a clear mold 25.

  As shown in FIG. 12, when the back electrode type solar cell 16 is sealed with a transparent protective resin or a clear mold 25, the solar cell module substrate 1 on which the back electrode type solar cell 16 is mounted is cut into a predetermined package size. (Substrate cutting step; S14).

  In the same manner as in step S <b> 12, the solar cell module substrate 1 on which the back electrode type solar cells 16 are mounted is fixed using the suction fixing jig 22. Then, as shown in FIG. 13, the solar cell module substrate 1 on which the back electrode type solar cells 16 are mounted is cut using a substrate cutting blade 26. FIG. 13, showing an embodiment of the present invention, is a diagram showing a cutting process of the solar cell module substrate 1 on which the back electrode type solar cells 16 are mounted.

  Further, as described above, the alignment mark (second alignment mark) serving as a reference for the cutting line is provided in the vertical and horizontal directions for each predetermined package size on the outer peripheral portion of the solar cell module substrate 1. Therefore, the solar cell module substrate 1 on which the back electrode type solar cells 16 are mounted is cut with reference to the alignment mark.

  The substrate cutting blade 26 has a width of a cut opening formed by the substrate cutting blade 26 (a line width formed by cutting), and a width of a cut opening formed by the silicon cutting blade 23 (by cutting). The width is smaller than the line width to be formed. A line formed when the back electrode type solar cell 16 is cut by the substrate cutting blade 26 so that the solar cell module substrate 1 on which the back electrode type solar cell 16 is mounted has a predetermined package size. A central portion of the line width is cut along the line.

  In this way, the solar cell module substrate 1 can be cut using the substrate cutting blade 26 in which the width of the groove formed by cutting is smaller than the width of the cutting groove 24 formed by cutting with the silicon cutting blade 23. Done. For this reason, external exposure of the back surface electrode type solar cell 16 sealed up to the cutting groove 24 by the transparent protective resin or the clear mold 25 can be prevented. Therefore, in order to prevent external exposure in this way, it is possible to prevent the characteristics of the solar cell module 27 from deteriorating.

  Note that the solar cell module substrate 1 is configured not to be wired at a position where it is cut by the substrate cutting blade 26.

  By the way, in the cutting of the solar cell module substrate 1 on which the back electrode type solar cells 16 shown in FIG. 13 are mounted, depending on the position at which the solar cell module substrate 1 is divided, as shown in FIGS. Solar cell modules 27 having different voltages can be provided. FIGS. 14 to 16 show an embodiment of the present invention and are cross-sectional views showing a cross-sectional shape of the solar cell module substrate 1 on which the back electrode type solar cells 16 are mounted after being divided into package sizes.

  Here, the positive electrode 20 and the negative electrode 19 were alternately arranged on the back surface of the back electrode type solar battery cell 16. Therefore, in this embodiment, the voltage between the pair of positive electrode 20 and negative electrode 19 is defined as a reference voltage v [V].

  For example, when the division into the package size of the solar cell module substrate 1 on which the back electrode type solar cells 16 are mounted has the shape of FIG. 14, two solar cell modules 27 in which one module has a voltage of 2v [V] are provided. Are obtained (module a, module b).

  In the case of the shape of FIG. 15, two solar cell modules 27 in which one module has a voltage of 4 v [V] are obtained (module a, module b).

  On the other hand, in the case of the shape of FIG. 16, two solar cell modules 27 having different voltages, one module being 2 v [V] and the other module being 4 v [V], are obtained (module a, module b). ).

  In this manner, a plurality of solar cell modules 27 having the same or different desired voltages can be produced from one solar cell module substrate 1 depending on the position at which the solar cell module substrate 1 is cut and divided.

  That is, the voltage between the pair of positive electrodes 20 and the negative electrode 19 in the back electrode type solar battery cell 16 can be defined as a reference voltage, so that it depends on how many pairs of the positive electrode and the negative electrode are combined. A desired voltage can be easily obtained.

  For example, one back electrode type solar cell that has been cut and separated has a pair of positive electrode 20 and negative electrode 21, and these separated back electrode type solar cells are connected in series. Therefore, a desired voltage can be easily obtained by the reference voltage × the number of solar battery cells.

  Therefore, the solar cell module 27 having a desired voltage can be generated depending on the position at which the solar cell module substrate 1 is cut and divided. Also, a plurality of solar cell modules 27 having a desired voltage can be manufactured at a time.

  In addition, as described above, in order to reduce the number of “solar cell module manufacturing steps” and eliminate the need for a fixing tape for cutting or a special tray, which has been necessary conventionally, The module substrate 1 needs to have a plurality of surfaces having different levels.

  Here, the manufacturing method of the solar cell module substrate 1 according to the present embodiment will be described below.

  As described above, it can be said that the solar cell module 27 manufactured in the manufacturing process of the solar cell module according to the present embodiment has the following configuration.

  That is, the solar cell module 27 is provided with a positive electrode 20 that is a positive electrode and a negative electrode 19 that is a negative electrode on a back surface 18 that is a surface opposite to the light receiving surface 17 that receives sunlight. And the solar cell module substrate 1 which is a substrate on which the back electrode type solar cell 16 is mounted.

  In the solar cell module substrate 1, conductive patterns are respectively formed on the first layer surface which is the surface on the light receiving surface side and the second layer surface which is a surface of a layer different from this surface.

  That is, the positive electrode 3 that is a positive electrode terminal connected to the positive electrode and the negative electrode 2 that is a negative electrode terminal connected to the negative electrode are formed on the first layer surface as conductive patterns. On the other hand, on the second layer surface, a lower wiring 12 (first wiring) for bundling the positive electrode connected to the positive electrode 3 as a conductive pattern and a lower wiring 13 (second wiring) for bundling the negative electrode connected to the negative electrode 2 Wiring).

  And the manufacturing process of the solar cell module 27 which concerns on this Embodiment includes the following processes.

  That is, the back electrode type solar cell 16 so that the positive electrode 20 and the negative electrode 19 of the back electrode type solar cell 16 respectively correspond to the positive electrode 3 and the negative electrode 2 of the solar cell module substrate 1. Includes a fixing step (S11) for fixing the substrate to the solar cell module substrate 1. Moreover, the solar cell cutting process (S12) which cut | disconnects the back surface electrode type solar cell 16 fixed to the solar cell module board | substrate 1 by the process shown to step S11 so that it may become a predetermined size is included. Furthermore, in order to protect the solar cell cut | disconnected by step S12, the sealing process (S13) sealed with the clear mold 25, and the solar cell which fixed the solar cell sealed with the clear mold 25 by step S13 A board cutting step (S14) for cutting the module board into an arbitrary size.

  As described above, the manufacturing process of the solar cell module 27 according to the present embodiment includes the fixing process in step S11 and the solar cell cutting process in step S12. For this reason, for example, the back electrode type solar battery cell 16, which is a necessary step in the conventional manufacturing method, is fixed to the fixing ring 129 using the fixing tape for cutting 128 and cut to a chip size. The process of storing in the dedicated tray 134 can be omitted. Therefore, the solar cell module 27 can be manufactured efficiently.

  In addition, since the step of fixing the fixing ring 129 with the fixing tape 128 for cutting in order to cut the back electrode type solar cell 16 can be omitted, in order to fix the back electrode type solar cell 16 There is no need for a fixing tape for cutting.

  Therefore, it is possible to prevent the back electrode type solar cells 16 cut and separated from being broken from being peeled off from the fixing tape, or from being peeled off from the fixing tape and being broken during cutting. Therefore, it is possible to reduce the number of singulated back electrode solar cells 16 that are damaged during manufacture, and to increase productivity. Therefore, as a result, efficient production of the back electrode type solar cell can be realized.

  In the solar cell module substrate 1 to which the wafer-sized back electrode type solar cells 16 are fixed, the lower wiring 5 is wired on the second layer surface which is a surface of a layer different from the first layer surface. For this reason, it is possible to prevent the lower wiring 5 from being cut when the back electrode type solar cell 16 fixed to the solar cell module substrate 1 is cut, and the solar cell cutting shown in step S12 described above. The process can be executed.

  As shown in FIG. 5, the solar cell module substrate 1 is composed of at least two layers of insulating substrates. However, the solar cell module substrate 1 is not limited to two or more layers of multilayer substrates. May be. In the case of a double-sided insulating substrate, the upper surface corresponds to the first level surface of the present invention, and the bottom surface corresponds to the second level surface of the present invention.

  Further, as described above, in the manufacturing process of the solar cell module 27 according to the present embodiment, the back electrode type solar cells 16 are first separated, separated (chiped), and connected in series. A desired voltage can be easily obtained by reference voltage × number of solar cells. Further, the back electrode type solar cell 16 is cut first, and then the clear mold 25 and the solar cell module substrate 1 are cut. And this cutting | disconnection is comprised so that it may cut | disconnect by the width | variety smaller than the cutting width of the back surface electrode type photovoltaic cell 16. FIG. For this reason, in the cutting | disconnection of the solar cell module board | substrate 1, the cut surface remains covered with the clear mold 25. FIG. Therefore, it can prevent that the side surface (cut surface) of the back-electrode-type solar cell 16 separated into pieces is exposed to the outside.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

  In the manufacturing process of the solar cell module 27 according to the present embodiment, the back electrode type solar cell 16, which is a necessary process in the conventional manufacturing method, is fixed to the fixing ring 129 using the fixing tape 128 for cutting. It is possible to omit the process of cutting the chip size and temporarily storing it in the dedicated tray 134. For this reason, it can be widely applied to a technique that requires a manufacturing process in which a wafer size such as a solar cell is cut into a chip size and the chip size is mounted on a substrate.

1 Solar cell module substrate (substrate)
2 Negative electrode (terminal for negative electrode)
3 Positive electrode (Positive electrode terminal)
4 Through hole (through hole)
5 Lower level wiring (wiring)
10 Wiring 11 Wiring 12 Lower wiring to bundle positive electrodes (wiring / first wiring)
13 Lower wiring to bundle negative electrode (wiring / second wiring)
14 Negative hole through hole (through hole)
15 Positive hole for through hole (through hole)
16 Back electrode type solar cell (solar cell)
17 Photosensitive surface 18 Back surface 19 Negative electrode 20 Positive electrode 21 Conductive adhesive resin 22 Adsorption fixing jig 23 Cutting blade 24 for silicon Cutting groove (first cut)
25 Clear mold (protective resin)
26 Blade for cutting substrates (cutting means)
27 Solar cell module 43 Insulating protective film (insulating protective film)
50 1st layer 51 2nd layer 52 3rd layer

Claims (14)

A solar cell in which a positive electrode that is a positive electrode and a negative electrode that is a negative electrode are provided on a back surface that is a surface opposite to a light receiving surface that receives sunlight; and the solar cell A method for manufacturing a solar cell module, comprising a substrate for mounting,
The substrate is electrically conductive in a first layer surface that is a surface in contact with the solar cell when the solar cell is mounted and a second layer surface that is a surface of a layer different from the first layer surface. A pattern is formed,
On the second layer surface, a wiring for guiding the current from the solar battery cell to the outside is formed as a conductive pattern,
A fixing step of fixing the solar battery cell to the substrate;
And a solar cell cutting step of cutting the solar cells fixed to the substrate by the fixing step so as to have a predetermined size. The outer size of the substrate is larger than the outer size of the solar cells fixed by the fixing step,
When the solar cells are fixed to the substrate, a first alignment mark that is a mark indicating a reference of the cutting position of the solar cells is attached to a blank portion formed on the outer peripheral portion of the solar cell module substrate. The method for manufacturing a solar cell module according to claim 1, wherein:   The method for manufacturing a solar cell module according to claim 1 or 2, wherein, in the solar cell cutting step, the solar cell is cut from a light receiving surface to the first layer surface.   The positive electrode and the negative electrode are alternately arranged on the back surface of the solar battery cell, and a voltage between a pair of positive electrode and negative electrode is defined as a reference voltage. Item 4. The method for manufacturing a solar cell module according to any one of Items 1 to 3. A positive electrode terminal connected to the positive electrode as a conductive pattern and a negative electrode terminal connected to the negative electrode are formed on the first layer surface,
The wiring formed as a conductive pattern on the second layer surface is a first wiring connected to the positive electrode terminal and a second wiring connected to the negative electrode terminal,
In the fixing step, the solar cell is fixed to the solar cell module substrate so that the positive electrode and the negative electrode of the solar cell correspond to the positive electrode terminal and the negative electrode terminal of the solar cell module substrate, respectively. The manufacturing method of the solar cell module of any one of Claim 1 to 4 characterized by these.   6. The method for manufacturing a solar cell module according to claim 5, wherein an insulating protective film is further formed between the adjacent positive electrode terminal and negative electrode terminal on the first layer surface of the substrate. .   Between the positive electrode terminal formed on the first layer surface and the first wiring formed on the second layer surface, and the negative electrode terminal formed on the first layer surface and the first 6. The second wiring formed on the second layer surface is connected to each other through a through-hole formed between the first layer surface and the second layer surface. Or the manufacturing method of the solar cell module of 6. A sealing step of sealing with a protective resin to protect the solar cells cut by the solar cell cutting step;
The substrate cutting process which cut | disconnects the board | substrate which fixed the photovoltaic cell sealed with the protective resin by the said sealing process to arbitrary sizes, In any one of Claim 5 to 7 characterized by the above-mentioned. The manufacturing method of the solar cell module of description. The outer size of the substrate is larger than the outer size of the solar cells fixed by the fixing step,
When a solar cell is fixed to the substrate, a blank portion formed on an outer peripheral portion of the solar cell module substrate is a mark indicating a reference of a cutting position of the substrate cut in the substrate cutting step. The method of manufacturing a solar cell module according to claim 8, wherein an alignment mark is attached.   10. The method for manufacturing a solar cell module according to claim 8, wherein the first wiring and the second wiring are not formed at a position to be cut by the substrate cutting step on the second layer surface. 11. The first cut which is a cut formed by cutting in the solar cell cutting step is sealed with a protective resin in the sealing step,
The said board | substrate cutting process cut | disconnects the part filled with protective resin in the 1st cut by the cutting | disconnection means used as the cut of a width | variety smaller than the width | variety of the said 1st cut. The manufacturing method of the solar cell module of any one.   The solar according to any one of claims 1 to 11, wherein in the fixing step of fixing the solar battery cell to the substrate, the mounting position of the solar battery cell on the substrate is confirmed by an infrared sensor or an infrared camera. Manufacturing method of battery module. The infrared camera or infrared sensor is arranged at a position where the entire outer shape of the substrate and the solar battery cell to be fixed to the substrate can be detected,
13. The method for manufacturing a solar cell module according to claim 12, wherein in the fixing step, a mounting position on the substrate of the solar cell is confirmed with reference to a detection result by the infrared camera or an infrared sensor. The infrared camera or infrared sensor is movable so as to be able to detect the entire outer shape of the substrate and the solar battery cell fixed to the substrate,
13. The method for manufacturing a solar cell module according to claim 12, wherein in the fixing step, a mounting position on the substrate of the solar cell is confirmed with reference to a detection result by the infrared camera or an infrared sensor.

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